Automobile bumper



FIG. 1 is a perspective view of an automobile bumper showing my new design;

FIG. 2 is a front elevation view thereof;

FIG. 3 is a right side elevation view thereof;

FIG. 4 is a left side elevation view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a bottom view thereof;

FIG. 7 is a rear elevation view thereof; and,

FIG. 8 is a perspective view thereof, the portions of the vehicle shown in broken lines are for illustrative purposes only and form no part of the claimed design. 

The ornamental design for an automobile bumper, as shown and described. 